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UNIT D STATES PATENT OFFICE.

V :TEILE H. MULLER, OF NEW YORK, ASSIGNOR TO SAMUEL S. HEPWORTH,

OF YONKERS, AND JOSEPH GOLWELL, OF NEW YORK, N. Y.

CENTRIFUGAL MACHINE.

SPECIFICATION forming part of Letters Patent No. 244,473, dated July 19, 1881. Application filed April 12, 1881. (No model.)

To all whom it may concern:

Be it known that I, TEILE H. MiiLLER, of New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Centrifugal Machines; and I do hereby declare that the following is a full, clear, and, exact description thereof, whereby aperson skilled in the art can make and use the same, reference being had to, the accompanying drawings, and to the letters of reference marked thereon.

Like letters in the figures indicate the same parts.

My improvements relate to centrifugal machines which are used for draining liquids from solids by centrifugal force, and more particularly to that class of machines known as hanging-machines.

The object of my invention is to provide a better and more efficient construction for the bearings of the spindle, the mechanism for suspending the machine, and the brake by which the machine is stopped.

In the accompanying drawings, on two sheets, illustrating my invention, Figure l is a vertical section of a machine having my improvements. Fig. 2 is an elevation of the upper part of the machine. Fig. 3 shows a horizontal section through the brake. Fig. 4 shows a side view of the link L of the brake. Fig. 5 shows a side view of the brake-lever K. Fig. 6 is a vertical section of the suspension-head D. Fig. 7 is a top view of the same, partly in section. Fig. Sis a plan of the suspensionsocket F. Fig. 9 is a section of the same. Fig. 10 is a side elevation of the same. Fig. 11 is a vertical section of the nut M. Fig. 12 is a top view of the same. Fig. 13 shows the sleeve N half in section and half in elevation. Fig. 14 is a plan of the same. Fig. 15 is a vertical section of the bearing for the lower end of the spindle detached from the machine. Fig. 16 is a plan of the same. Fig. 17 is a vertical section of the oil-chamber and parts for supporting the lower bearing of the spindle, with the parts shown in Fig. 15 removed. Fig. 18 is a plan of the same. Fig. 19 is a plan of one-half of the curb O.

' A is the basket. This is constructed in the 50 usual manner.

B is the spindle upon which the basket is fixed and by which it is driven.

O is a drum or pulley fixed to the spindle. Its upper portion receives the belt which drives the machine, and its lower portion is acted upon by the brake for checking its motion or stopping it.

D is the head by which the machine is suspended. It is furnished with a ball-and-socket joint, which allows the machine to hang freely. E E E are the rods by which the curb is suspended in the usual manner.

F is the suspension'socket. This is made in two parts, bolted together after it is placed on the ball of the joint. It is firmly bolted to a beam, or to the frame by which the machine is supported.

The brake (shown more particularly in Figs. 2 to 5) is attached to the suspension-head D by means of the arm or hub to, and is composed of cast-iron shoes G, which receive the wood lining, attached to a wrought-iron strap, H. This strap has an eye at one end, to which the link L is attached, and the other end terminates in a round shank, which passes through a hole in the fulcrum-pin f, and is secured by the nuts I and I. The fulcrum pin f passes through the hub a, and is fitted so that it can turn slightly to conform to the position of the strap. One end of the link L is fitted to work freely on the cam or eccentric upon the lever K.

When it is required to stop the machine the brake is. applied to the pulley C. When the lever K is in the position shown in Fig. 3 the line passing through the center of the cam has passed the center line'of the link L, and the lever rests against one of the shoes of the brake, in which position it is held until turned to again relieve the pressure of the brake.

The shoes G are intended to be lined with wood placed with the end grain to the pulley O, and to be filled with shoe-pegs in the usual manner. As this wood wears away, the strap is shortened by means of the nuts I and I.

In order to hold the head D from turning the lugs c c on the suspension-socket F fit freely over the rib b on the suspension-head D, and keep the head from revolving while permitting of the required swinging motion.

The bottom bearin g consists of the oil-cham- I00 ber R, which is firmly bolted to the radial bars of the curb O, leaving an annular space between the oil-chamber and the central hub of the curb and the interior parts,P and Q. The part Q is fitted into the sleeve P, and formsa part of the same, as shown in Fig. 15. The internal surface of Q is made tapering to conform to the shape of the spindle, and is intended to be lined with soft metal in the usual manner. The sleeve 1 is fitted snugly into the hub of the curb 0, but in such a manner that it can be moved up by means of the setscrews d d, or be drawn down by the bolts e e.

The top bearing consists of the suspensionhead D, with the sleeve N fitted snuglyinto it, but so that it can be pushed down by means of the nut M or drawn up by the bolts m m. The internal surface of the sleeve N is made tapering to conform to the shape of the spilldle. It is important that the upper and lower bearings of the spindle shall fit so closely into their bearings as not to permit of any lateral movement, and at the same time not so close as to cause the bearings to heat. By the devices herein described these adjustments can be readily and accurately made in the following manner: By pushing up the sleeve P by means of the set-screws d (1 until the friction is slightly felt by turning the basket A, then slacking them .a trifle and drawing the sleeve back again by the bolts 0 e. The upper bearing is adjusted in a similar manner by pushing the sleeve N down by the nut M until the friction is slightly felt when turning the basket, then drawing the sleeve back again by slacking the nut and tightening the bolts mm.

What I claim as my invention is 1. The combination of the suspension-socket F, having the lugs c, with the suspension-head D, having the rib b, constructed and arranged substantially as and for the purpose described.

2. The combination of the brake having the strap H, the adjusting-nuts I I, the link L, and the cam-lever K, with the pulley G and the head D, substantially as described.

3. The combination of the adjustable sleeve P, the bearing. Q, the oil-chamber R, the setscrews d d, and the bolts 0 0, with the spindle B and curb O, substantially as described.

4. The combination of the bearing N, the nut M, the bolts m m, the head 1), and the spindle B, substantially as described.

TEILE H. MULLER.

Witnesses 0. TH. WAGNER, ALFRED E. WATKINS. 

